30 - 5d - c + 3d
In this equation there are two numbers which have the letter d with them. These would be like terms.
You have -5d + 3d which equals -2d
The simplified form would be 30 -2d -c
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Answer:
M = n - 1
Step-by-step explanation:
7m + 2 = 7n - 5
Group like terms
7m = 7n - 5 - 2
7m = 7n - 7
7m/7 = 7n /7 - 7/7
M = n - 1
<span>5x−y=8 ; y = 5x - 8
7x+4y=22
substitute </span>y = 5x - 8 into 7x+4y=22
7x+4y=22
7x+4(5x - 8) = 22
7x + 20x - 32 = 22
27x = 54
x = 2
y = 5x - 8
y = 5(2)- 8
y = 10 - 8
y = 2
answer: x = 2 y = 2 or (2,2)